Iron-based superalloy
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.20 | ||
| Cr | 14.0 | 16.0 | ||
| Mo | 3.0 | 5.0 | ||
| Ni | - | Remainder | ||
| Co | 13.5 | 15.5 | ||
| Al | 4.5 | 5.0 | ||
| Ti | 3.5 | 4.5 | ||
| B | 0.01 | 0.025 | ||
| Fe | - | 0.1 | ||
| Zr | - | 0.15 |
GH4118
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 612 (≥) | 459 (≥) | 13 | 43 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 973 (≥) | 835 (≥) | 12 | 24 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 421 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 476 | 772 | 669 |
We can customize the production of GH4118 grade, contact us for the best solution.
–sales@specificsteel.com